Year	Dollars
1992-01-01	66284156
1997-01-01	70890073
2002-01-01	175703016
2003-01-01	165247893
2004-01-01	46569481
2005-01-01	55904517
2006-01-01	77040077
2007-01-01	113768157
2008-01-01	133026618
2009-01-01	141581001
2010-01-01	271209671
2011-01-01	330630260
2012-01-01	319293595
2013-01-01	294495194
2014-01-01	356755444
2015-01-01	347113188
2016-01-01	412802767